Wagow-bbake



D. ROBINSON.

Wagon-Brake.

Patented Jan. 25, 1859.

Jzvenr;

UNITED sTaTEsu PATENT oEEIoE.

DANIEL IOBINSUN, (Dit LltlOX, L'IINNSYLVANIA.

WAGON-BRAKE.

Specification o Letters Patent: No. 22,749, dated January 25, 1859'.

To all whom it may concern:

lle it known that l. DANIEL llomxson, of Lenox, in the count)7 ol' Susquehanna and State of Pennsylvania, have invented a new and Improved Sett-Acting Brake forlvheeh Vehieles; and VI do herehv deelare that the 'Following' is a full, ele-ar, and exact` description ot the saine. reterenee heiligl had to the annexed drawings. making` a part ot this specification, in 'whiehH Figure l, is a side sectional view of my invention applied to a eart, a, a, Fig. Q, in dientes the plane of section. Fig. 2, is a plan or top view of the same.

Similar lettere` ot' reference indicate corresponding parts in the two liggnres.

This invention consists in attaching shoes to roet: sbatte which are fitted in the hed or truek of the vehicle and having curved bars attached to .said rock shafts, the hars passing through a sliding frame fitted in the hed or truck, said traine having the draft pole attafhed to it. The brake is operated hv the momentum of the vehicle 'when the speed ot' the saine ie checked or hy gravity alone when descending eminenees, the desired result being el'l'eeted hy a` verlv,T simple means and one that may he applied to all wheel-vehicles.

To enahle those skilled in the art to fully understand and Construct my invention I will proceed to describe it.

A, represents a hed or truel oi a Cart, Said hed or truck being' mounted on wheels B, B, the axle C, ot' which ia about underneath the center ot' the hed or truek A.

D, D, are two rock shafts which pass through the hed or truek A, and are altowed to turn therein. To each end ot' eaeh shalt l), a vertieal Vi'ralne a, ia attached and in eaeh trame a, a shoe E, is plaeed, said 4shoes heine' pivoted in the frames a, the Vt'ront shoes havingeaeh a springl hearing against their outer sides. The outer snrt'aees ot the .shoes E, are of convex form, as shown clearly in Fig. 1, and the springs L, have a tendeney to keep the faces of the lront shoes downward. the object o'l'f which will he presently explained.

To each shat't l). two curved or hent hars e. ff. are attached, .said bars heine' within the hed or truck A, and havingl their curved or hent portions paesino' through traverse pieces (l, a. of a traine F. which is fitted in the hed or truck A, and allowed to slide freelyY therein in a longitudinal direction. The ends of the hars r", e, of hoth rook shafts are hent upward as shown clearly in Fig. l, and to the tront end ot' the frame F, a drat't pole (l, is attached.

To one side ot' the hed or truck A. a bent lever ll. is attaehed as shown at e, and to the lever Il, a vertical pin f', is secured, said pin passing' through a` har g, to which the lever ll, attached. and when desired made to titi into a hole in one side ot' the trame l".

The operation is as follows: As the ve hiele is drawn along, the frame F. will he drawn forward to its fullest extent, so that the curved or bent portions ot the hars c, C, ot the roel( shafts D, D, will he actuated and the 'ront roel: shaft D, turned so as to throw its trames a, outward from the wheels l, and the trames o, ot' the hack rock shat't D, toward the wheels. The back shoes` will in consequence prevent the wheels ll, troni turning hackward aS the tendeney of the wheels to move in Such direction will instantly cause the hack shoes to bend against the wheels. The hack shoes therefore pert'orin the t'unetion of a scotch and prevent the easual hackingof the vehicle. ln deseending' hills the gravity of the vehicle will eause the hed or truck A to move forward and actuate the hars e, c, ot' the roel( shafts in a reverse manner so that` the shoes ot the vtrent rock shaft` will he pressed against the wheels and the shoes of the haelt rock shaft thrown outward from the wheels. The front Shoes therefore pertornl the otiice of hrakes preventiingr the torward movement ot the vehicle. ln ease the speed ot' the vehiele is euddenl)T cheeked on a level surface the momentum of the vehicle will then aetuate the front shoes and Cause them to press against the wheeler. It. will he seen therefore that the hrakes are .selfaeting'. The lever ll, and pin f, serve as a stop devieqehy actuating the lever ll, and terrinethe pin f, into the hole in the frame F. the latter is prevented from moving and the brake rendered inoperative. This may he neeessaev or desirable in certain eases. It will he seen that this invention maw7 he readilv applied to all wheel-vehicles inelndingr railfroad ears. Then the improvement is applied to tour wheel vehielee the invention may he applied to one pair of wheels only.

Having thus described my invention what T duim :1s new und {kwh-v In Qcrmo by Lcltms Fntvnt. 1s,

The rumbmni'mn am! umfmlgcmcni of ille Riding fram@ 1*" VH1-ved bars c, :xuched to 1&1@ hwk dmts D. D` and passing thruugh lh(V1 tmwl'se bars J. nf ille iframe F. and the shui# IC, mtmfhud l0 th@ mds of the IOrk dm's, the several pari? bfeing' fitted in the iruwk m lwd A, subtzminlly :is und for thv 11m-[msu set fnrtll. DANIEL ROBNSN.

Vhesses:

G. AMES, TIMQ'I'UY Cfmmx'rlclr. 

